Windows - fix proxy types for manually specified proxies

When the windows internet options are used to specify a
different proxy for each protocol, assume the proxy server type
matches that protocol too.
e.g. "socks=qt-test-server:1080" is both tagged for socks, and
assumed to be a socks server.
"ftp=qt-test-server:2121" is assumed to be an ftp proxy
"ftp=http://qt-test-server:3128" is overridden to be a http proxy
used for ftp.

Task-number: QTBUG-10502
Change-Id: I70615c89d6ede53f0e7d62e6d0754b90d042aa2e
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
(cherry picked from commit a7489b2ba3f2f3ea28d6fff0c835c12b0666af45)
Reviewed-by: Shane Kearns <shane.kearns@accenture.com>

1 files changed, 15 insertions, 8 deletions

diff --git a/src/network/kernel/qnetworkproxy_win.cpp b/src/network/kernel/qnetworkproxy_win.cpp
index 886a61c..43b9636 100644
--- a/src/network/kernel/qnetworkproxy_win.cpp
+++ b/src/network/kernel/qnetworkproxy_win.cpp
@@ -179,38 +179,45 @@ static QList<QNetworkProxy> parseServerList(const QNetworkProxyQuery &query, con
     // According to the website, the proxy server list is
     // one or more of the space- or semicolon-separated strings in the format:
     //   ([<scheme>=][<scheme>"://"]<server>[":"<port>])
+    // The first scheme relates to the protocol tag
+    // The second scheme, if present, overrides the proxy type
 
     QList<QNetworkProxy> result;
     foreach (const QString &entry, proxyList) {
         int server = 0;
 
+        QNetworkProxy::ProxyType proxyType = QNetworkProxy::HttpProxy;
+        quint16 port = 8080;
+
         int pos = entry.indexOf(QLatin1Char('='));
+        QStringRef scheme;
         if (pos != -1) {
-            QStringRef scheme = entry.leftRef(pos);
+            scheme = entry.leftRef(pos);
             if (scheme != query.protocolTag())
                 continue;
 
             server = pos + 1;
         }
-
-        QNetworkProxy::ProxyType proxyType = QNetworkProxy::HttpProxy;
-        quint16 port = 8080;
-
         pos = entry.indexOf(QLatin1String("://"), server);
         if (pos != -1) {
-            QStringRef scheme = entry.midRef(server, pos - server);
+            scheme = entry.midRef(server, pos - server);
+            server = pos + 3;
+        }
+
+        if (!scheme.isEmpty()) {
             if (scheme == QLatin1String("http") || scheme == QLatin1String("https")) {
                 // no-op
                 // defaults are above
             } else if (scheme == QLatin1String("socks") || scheme == QLatin1String("socks5")) {
                 proxyType = QNetworkProxy::Socks5Proxy;
                 port = 1080;
+            } else if (scheme == QLatin1String("ftp")) {
+                proxyType = QNetworkProxy::FtpCachingProxy;
+                port = 2121;
             } else {
                 // unknown proxy type
                 continue;
             }
-
-            server = pos + 3;
         }
 
         pos = entry.indexOf(QLatin1Char(':'), server);